Relation algebras are algebras arising from the study of binary relations. They form a part of the field of algebraic logic, and have applications in proof theory, modal logic, and computer science. This text uses combinatorial games to study the fundamental notion of representations of relation alg[...]

A text for the world history survey course that employs fundamental themes of 'environment and technology' and 'diversity and dominance' to explore patterns of human interaction with their surroundings and with each other.[...]

Readable and concise, this Brief Edition of THE EARTH AND ITS PEOPLES: A GLOBAL HISTORY provides the essential narrative of world history in an abbreviated format. This global text for the world history survey course employs fundamental themes of ?environment and technology? and ?diversity and domin[...]

Readable and concise, this Brief Edition of THE EARTH AND ITS PEOPLES: A GLOBAL HISTORY VOLUME II provides the essential narrative of world history in an abbreviated format. This global text for the world history survey course employs fundamental themes of ?environment and technology? and ?diversity[...]

Every church needs leadership. But leadership should not reside in a single pastor. The biblical model for church leadership is found in teams of elders who together guide the community into God's mission. Church leaders J.R. Briggs and Bob Hyatt provide a comprehensive picture of elders as agents o[...]